let map = new Map([
    [1,1],
    ['2',2],
    [true,3],
    [[],4],
    [{},5],
    [Symbol(),6],
    [null,7],
    [undefined,8],
    [BigInt(9),9],
    [function add(){},10],
    [new Map(),11],
    [new Set(),12]


])

console.log(map);